Oracle Java SE 8 Programmer II : 1z1-809 Exam Questions

Exam Code: 1z1-809
Exam Name: Java SE 8 Programmer II
Updated: Aug 23, 2026
Q&As: 209 Questions and Answers

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Certification Path

Oracle Java SE 8 Programmer I can act as a prerequisite for this 1Z0-809 exam.

Reference: https://education.oracle.com/pls/web_prod-plq-dad/db_pages.getpage?page_id=5001&get_params=p_exam_id:1Z0-809

Oracle 1z1-809 Exam Syllabus Topics:

Section	Weight	Objectives
Exceptions and Assertions	8%	- Use try-with-resources - Use assertions - Create custom exceptions - Use try-catch, multi-catch, finally
Generics and Collections	15%	- Use generic classes, interfaces, and methods - Use Collections Framework: List, Set, Map, Queue - Analyze type safety and type erasure - Sort and search collections
JDBC	5%	- Process resultsets - Execute queries and updates - Connect to database
Java Class Design	15%	- Implement inheritance including visibility modifiers and composition - Use static keyword in blocks, variables, methods, classes - Implement encapsulation - Override hashCode, equals, and toString methods - Create singleton and immutable classes - Implement polymorphism
Java I/O and NIO.2	8%	- Use Path, Files, FileSystem API - Stream operations on files - Read/write with java.io API
Localization	5%	- Use Locale class - Work with resource bundles - Format numbers, dates, messages
Java Stream API	15%	- Work with Optional class - Describe Stream interface and pipeline - Use terminal operations: collect, reduce, count - Filter, map, and process streams
Java SE 8 Date/Time API	7%	- Format and parse dates/times - Use LocalDate, LocalTime, LocalDateTime, Instant - Work with Period, Duration, time zones
Lambda Expressions and Functional Interfaces	15%	- Use built-in functional interfaces: Predicate, Consumer, Function, Supplier - Use primitive and binary variants of functional interfaces - Create and use lambda expressions - Use method references
Advanced Java Class Design	10%	- Create inner classes: static, local, nested, anonymous - Use abstract classes and methods - Use enumerated types - Use final keyword
Concurrency	12%	- Create threads: Thread class, Runnable, ExecutorService - Control thread lifecycle and synchronization - Use java.util.concurrent components - Use Executors, Callable, Future